摘要:
A method and recording medium for managing an A/V stream are discussed. According to an embodiment, the method includes a method for managing a main Audio/Video (A/V) stream on a recording medium, the method comprising: providing a first playlist on the recording medium that links the main A/V stream with a first additional data such that the main A/V stream is reproduced with the first additional data; and providing a second playlist on the recording medium that links the main A/V stream with a second additional data such that the main A/V stream is reproduced with the second additional data.
摘要:
In one embodiment, the recording medium includes a text subtitle stream file, storing a text subtitle, per language, and a playlist file including at least one playitem and at least one subplayitem. The playitem manages reproduction of main data associated with the text subtitle and the subplayitem manages reproduction of the text subtitle. The recording medium also includes a stream information file corresponding to the text subtitle stream file. The stream information file includes language information indicating a language of the text subtitle stream file.
摘要:
Content encryption information on content data recorded on a recording medium. A plurality of encryption keys used for encrypting a plurality of data clips containing content data is stored in a key file and index information for associating each of the plurality of encryption keys with a data segment encrypted with the encryption key is placed in the key file or in another management information file (e.g., clip information file). As a consequence, it is allowed to decrypt encrypted content data with different encryption keys by applying each of the plurality of encryption keys to each associated data segment.
摘要:
The present invention relates to a method for managing menu data of data stream recorded on an optical disc such as a high-density read-only optical disc. A read-only recording medium including menu data in accordance with the present invention is characterized in that its menu data contains at least one menu page picture in which a menu item is included, wherein said menu data contains item differentiating information that is used to differentiate one menu item from another in a displayed menu page picture. Owing to such constructed menu data, a menu page is constructed very fast.
摘要:
In one embodiment, the recording medium includes a data area storing moving picture data, and a navigation area storing navigation information for managing reproduction of the moving picture data. The navigation information includes a metadata indicator indicating whether metadata associated with the moving picture data exists. The metadata is additional information describing content of the moving picture data, and the navigation information includes linking information identifying metadata associated with the moving picture data if the metadata indicator indicates metadata associated with the moving picture data exists. The navigation area may also store a content reference that references the moving picture data associated with the metadata.
摘要:
A buffer initially preloads a text subtitle stream recorded on a recording medium. The preloaded text subtitle stream includes a dialog style segment defining a group of region styles and a plurality of dialog presentation segments, each of which contains at least one region of dialog text. Each region of dialog text is linked to a selected one of the group of region styles defined in the dialog style segment. The dialog style segment and the plurality of dialog presentation segments are encapsulated in a plurality of PES packets, respectively. A text subtitle decoder decodes and presents each dialog presentation segment according to a continuous presentation flag included in each dialog presentation segment. The continuous presentation flag indicates whether continuous presentation is required for each dialog presentation segment with previous one.
摘要:
In the data structure for managing data streams associated with different languages, a playlist including at least one playitem for managing reproduction of a main data stream is provided. The playitem includes a table defining a list of data streams. The list of data streams includes the main data stream and a data stream of at least one type of supplemental data stream. The table includes language information on each supplemental data stream of the type of supplemental data stream, and the language information indicates a language associated with the supplemental data stream.
摘要:
A high density optical disc and a method for creating and reproducing a file system of the same are disclosed. In recording a file system information on an optical disc, the method for creating a file system of a high density optical disc includes recording a main volume descriptor sequence and a reserve volume descriptor sequence, wherein each of the main volume descriptor sequence and the reserve volume descriptor sequence is recorded in a different ECC block. Accordingly, a highly reliable file system information may be provided. Furthermore, by using the newly created file system information, the optical disc may be reproduced with more efficiency
摘要:
A recording medium having a data structure for managing reproduction of video data recorded on the recording medium. The recording medium having at least one navigation area for storing navigation management information used in managing real-time reproduction path video data recorded on the recording medium. The navigation management information includes at least one navigation unit that includes a plurality of video data packets and a plurality of real-time navigation packets.
摘要:
The data structure includes a navigation area of a computer readable medium storing navigation data associated with a data stream representing a portion of at least one reproduction path. The navigation data includes indication information, and the indication information indicates whether the data stream represents multiple reproduction paths or the data stream represents a single reproduction path. If the indication information indicates the data stream represents multiple reproduction paths, the navigation data includes path number information and an indicator associated with each reproduction path. The path number information identifies a number of the multiple reproduction paths, and each indicator indicates a file associated with the associated one of the multiple reproduction paths.